Turinworkshop 2 Leung

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Information about Turinworkshop 2 Leung

Published on July 28, 2008

Author: adamas

Source: slideshare.net

Description

international workshop accelerator based neutron sources for medical industrial and scientific applications torino eurosea international workshop accelerator based neutron sources for medical industrial and scientific applications torino eurosea

Axial Type Neutron Generator

Axial Type Neutron Generator

 

 

 

Axial D-D Neutron Generator Ion source Ti target RF antenna Pumping port High voltage connection

Lifetime of D-D Neutron Generator Source filling pressure = 3 mTorr Number of D 2 molecules per cm 3  10 14 Volume of generator = 2 × 10 3 cm 3 Total number of D 2 molecules = 2 × 10 17 D - D neutron yield = 10 9 n/s Consumption rate of D 2 molecules  2 × 10 9 /s Life time of generator = ( 2 × 10 17 / 2 × 10 9 ) s = 10 8 s = 27,800 hrs

Source filling pressure = 3 mTorr

Number of D 2 molecules per cm 3  10 14

Volume of generator = 2 × 10 3 cm 3

Total number of D 2 molecules = 2 × 10 17

D - D neutron yield = 10 9 n/s

Consumption rate of D 2 molecules  2 × 10 9 /s

Life time of generator = ( 2 × 10 17 / 2 × 10 9 ) s = 10 8 s = 27,800 hrs

Coaxial Type Neutron Generator

Coaxial Type Neutron Generator

 

 

 

Applications: - PGAA for material identification - Boron Neutron Capture Therapy (BNCT)

Applications:

- PGAA for material identification

- Boron Neutron Capture Therapy

(BNCT)

PGAA and NAA Results NAA spectrum for the analysis of NaCl measured using the neutron generator operating at a flux of  10 9 n/s corresponding to a fluency of  10 5 ncm -2 s -1 at the target position PGAA gamma-ray spectrum of the neutron generator, moderator, and support materials where the elements H, B, C, O, Al, Si, Cl, Fe, and Ti are identified.

BNCT can be performed by means of: - a fission reactor - an accelerator system (ESQ, linac, RFQ . . .) - a compact neutron generator

BNCT can be performed by means of:

- a fission reactor

- an accelerator system

(ESQ, linac, RFQ . . .)

- a compact neutron generator

Principle of BNCT

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