Measurements of EBS and PIGE cross-sections for protons on low-Z nuclei

Measurements Measurements of EBS and PIGE of EBS and PIGE cross-sections cross-sections for protons on for protons on low-Z nucleilow-Z nuclei

DEVELOPMENT OF A REFERENCE DATABASE FOR ION BEAM ANALYSIS

Research Co-ordination Meeting, Vienna, 21-23 November 2005

Massimo ChiariIstituto Nazionale Fisica Nucleare

Florence, Italy

The pastThe past

The presentThe present

The futureThe future

The past…The past…



0.00

0.05

0.10

0.15

0.20

0.25

d/d

(ba

rn/s

r)

0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.78 3.03170°

160°

150°

140°

130°

120°

110°

100°

E (MeV)

scattering angle

2.75 3.000.00

0.05

0.10

0.15

0.20

0.25

d/d

(ba

rn/s

r)

0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.78 3.03170°

160°

150°

140°

130°

120°

110°

100°

E (MeV)

scattering angle

2.75 3.00

10B(p,p)10B 11B(p,p)11B

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

d/d

(ba

rn/s

r)

3.002.752.502.252.001.751.501.251.000.750.50170°

160°

150°

140°

130°

120°

110°

100°

E (MeV)

scattering angle

12C(p,p)12C

0.0

0.2

0.4

0.6

0.8

1.0

d/d

(ba

rn/s

r)

0.78 1.03 1.26 1.51 1.76 2.00 2.25 2.49 2.74 2.98

170°160°

150°140°

130°120°

110°100°

E (MeV)

scattering angle

0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2. 75 3.00

27Al(p,p)27Al

The past…The past…

View of the first scattering chamber

Inside view of the chamber

The old KN3000 accelerator in Florence

Detector mount



The present…The present…



External microbea

m

High-energy AMS spectrometer

Multi-sample

AMS injector

Tandetron Accelerator3 MV terminal voltage

External beam for

archaeometry

Multipurpose IBA

vacuum chamber

External beam for

aerosol analysis

Electrostati

c chopper

Multi-angle scattering chamber

operational

planned for 2006

under installation

Dual source IBA injector

The new LABEC laboratory of INFN in Florence

The present…The present…





The future…The future…MULTI-DETECTORMULTI-DETECTOR

SCATTERING CHAMBERSCATTERING CHAMBER

Electronics & data acquisition up to 24 channels

10 x 10 mm2, 300 m silicon PIN junction detectors

Cryogenic mount

Covered angular range:177.5° to 97.5°

82.5° to 2.5°in steps down to 2.5°

Remotely controlled target holder

The future…The future…



Cryostat

Forward detectorbank

Backward detectorbank

Beam inputcollimator

Beam exitcollimator

The future…The future…



Remote-controlledtarget holder

Detector collimatorsassembly



Measurements conducted at the 5 MV Tandetron accelerator of CMAM in Madrid Measurements conducted at the 5 MV Tandetron accelerator of CMAM in Madrid

19F(p,p)19F, = 150°

0

0.01

0.02

0.03

0.04

0.05

3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0E (MeV)

d /

d

(b

arn

/sr)

This work

Bogdanovich et al. [1993]

Ouichaoui et al. [1986]

Thompson et al. [1967]

23Na(p,p)23Na, = 150°

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0E (MeV)

d /

d

(b

arn

/sr)

7Li(p,p)7Li, = 150°

0

0.02

0.04

0.06

0.08

0.1

0.12

3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0E (MeV)

d /

d

(b

arn

/sr)

This work

Gleyvod et al., 145° [1965]

Fasoli et al., 145° [1964]

Serie1

12C(p,p)12C, = 150°

0

0.1

0.2

0.3

0.4

3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0E (MeV)

d /

d

(b

arn

/sr)

This workAmirikas et al. [1993]Barnard et al. [1966]Nikolic et al. [1963]Reich et al. [1956]Jackson et al. [1953]Serie5

THESE DATA ARE STILL

UNDER ANALYSIS



Measurements conducted at the 5 MV Tandetron accelerator of CMAM in Madrid Measurements conducted at the 5 MV Tandetron accelerator of CMAM in Madrid

p + 19F, = 135°

0

5

10

15

20

3.0 3.5 4.0 4.5 5.0 5.5E (MeV)

d /

d

(m

b/s

r)

This workBoni et al. [1988]Ranken et al. [1958]

19F(p,p')19F, E = 110 keV

p + 19F, = 135°

0

5

10

15

20

25

30

3.0 3.5 4.0 4.5 5.0 5.5E (MeV)

d /

d

(m

b/s

r)

This workBoni et al. [1988]Ranken et al. [1958]

19F(p,p')19F, E = 197 keV

p + 7Li, = 135°

0

2

4

6

8

10

12

14

16

3.0 3.5 4.0 4.5 5.0 5.5E (MeV)

d /

d

(m

b/s

r)

This workSerie2Boni et al. [1988]Serie5

7Li(p,p')7Li, E = 478 keV

7Li(p,n)8Be, E = 429 keV

p + 23Na, = 135°

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5E (MeV)

d /

d

(m

b/s

r)

23Na(p,p')23Na, E = 440 keV

THESE DATA ARE STILL

UNDER ANALYSIS

Planned activitiesPlanned activities



Year 2• Measurement of the N(p,p)N

cross-section up to 6 MeV,from 170° to 100°

• Measurement of PIGE cross-section from 3 to 6 MeV on Mg, Al, Si, P, S

Year 3• Measurement of the C(p,p)C

cross-section from 3 to 6 MeV, from 170° to 100°

• Measurement of the F(p,p)F cross-section up to 6 MeV,from 170° to 100°

Year 1• Installation and performance

tests of the new multi-detector scattering chamber

Available targets Available targets



Li 20 g∙cm-2 Au / 50 g∙cm-2 LiF / 30 g∙cm-2 C

B 20 g∙cm-2 B

C 4-10-50 g∙cm-2 C

13C 10-50 g∙cm-2 13C

N 20 g∙cm-2 GaN

F 20 g∙cm-2 Au / 50 g∙cm-2 LiF / 30 g∙cm-2 C

Na 70 g∙cm-2 NaBr / 15 g∙cm-2 C

24Mg 50 g∙cm-2 24MgO / 150 g∙cm-2 Au

Al 20-50 g∙cm-2 Al

Si 50 g∙cm-2 Si

Measurements of EBS and PIGE cross-sections for protons on low-Z nuclei

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